Comprehensive Overview of Acoustic-Induced Vibration (AiV) in process piping
By Matt Jaouhari
Abstract
This presentation provides a comprehensive overview of acoustic-induced vibration
(AIV) in process piping, focusing on high-frequency vibrations and their impact on
system performance. The session will begin with a fundamental introduction to acoustic
vibrations, followed by a historical perspective on their identification and challenges
within industrial processes. The comparison between acoustic-induced vibrations (AIV)
and flow-induced vibrations (FIV) will be explored, emphasizing the key differences
between high-frequency and low-frequency vibrations, their causes, and their effects
on piping systems.The discussion will then shift to the innovative development of
Sweeplus, a first-of-its-kind, patented piping fitting designed to address the concerns
of acoustic-induced vibrations. From conceptualization to large-scale production,
the evolution of Sweeplus will be examined in detail. The presentation will also highlight
the extensive simulations and testing processes conducted to ensure compliance with
industry codes and standards, guaranteeing the safety and reliability of the fitting
in process piping systems. A key feature of Sweeplus is its ability to improve the
fatigue life of piping under high-frequency acoustic-induced vibrations, thus enhancing
the durability and operational efficiency of critical piping systems. By the end of
this presentation, attendees will gain a deeper understanding of acoustic and flow-induced
vibrations, as well as the innovative solutions that are shaping the future of process
piping design and safety.
Biography
Matt Jaouhari is a Bechtel Fellow, recognized for his outstanding contributions and
expertise in process piping with 20+ years of experience. Previously, he served as
the Chief Engineer of Plant Design and Piping at Bechtel Energy, a global leader in
engineering, procurement, and construction, where he managed multi-billion-dollar
projects. Now an Engineering Manager, Matt leads all aspects of engineering across
projects, with a particular focus on complex piping systems for energy projects worldwide.
With extensive experience in plant design, Matt has developed innovative solutions
for challenges like acoustic-induced vibrations (AIV) in process piping and made changes
to industry Codes and Standards on this topic. Notably, he helped invent a groundbreaking
pipe fitting designed to mitigate AIV-related fatigue failure. Matt holds a professional
engineering license from BC, is a certified Project Management Professional (PMP),
and graduated from the University of Houston-Downtown with a degree in Process and
Piping Design Engineering Technology.
In addition to his technical expertise, Matt actively contributes to the industry
through his leadership roles. He is currently Vice-Chair of the American Society of
Mechanical Engineers (ASME) Design Group and the incoming Chair. He is also a member
of the Process Industry Practice (PIP) Functional Piping Group and the Energy Institute.
Matt holds two patents—Sweeplus and Adjustable Pipe Support—and has authored or co-authored
25+ technical papers thru various professional venues on topics such as Acoustic-Induced
Vibration, compression collars, flow-induced vibration, and his Sweeplus innovation
and book chapters.
